Vast.ai

What is Vast.ai?

Vast.ai is a GPU cloud marketplace for renting and hosting GPU compute. It connects GPU providers with users who need compute for machine learning, rendering and other heavy workloads.

Key capabilities of Vast.ai

• Live GPU marketplace: browse and rent 68+ GPU types from RTX 3060 to B200
• On-demand instances: guaranteed uptime billed per second
• Interruptible instances: 50%+ cheaper for fault-tolerant batch training
• Reserved instances: up to 50% discount for 1, 3 or 6 month commitments
• Developer tools: API, CLI and Python SDK
• Hosting program: list your own GPUs for rental

How Vast.ai works

Renters pick a GPU offer from the live grid at current market rates, choose an instance type and launch it. Prices are set by supply and demand, not by Vast.ai, and billing is per second with no minimum hours. Providers earn by hosting GPUs on the network.

Who uses Vast.ai?

ML engineers, researchers and studios that want low-cost GPU compute without long contracts, and providers with spare GPU capacity. The vendor cites live pricing across 40+ data centers.

Vast.ai pricing

Hourly rates are set by the market and shown live in the GPU grid, so there is no fixed price list. On-demand is billed per second, interruptible is 50%+ cheaper and reserved offers up to 50% off with commitments.

Vast.ai alternatives

fal and Hyperbolic offer hosted GPU inference and compute, Liquid AI builds efficient models, and Keras and JAX are machine learning frameworks rather than GPU rental services.